Australian Energy Market Operator

AEMO operates Australia's National Electricity Market (NEM), the interconnected power system in Australia’s eastern and south-eastern seaboard, and the Wholesale Electricity Market (WEM) and power system in Western Australia.

AEMO operates gas retail markets in New South Wales and the Australian Capital Territory, Queensland, South Australia, Victoria, and Western Australia. AEMO also operates wholesale gas markets in south-eastern Australia, those being the Declared Wholesale Gas Market in Victoria (DWGM), the Short Term Trading Market in Adelaide, Brisbane and Sydney (STTM), and the Gas Supply Hub (GSH), whose trading locations are based at Wallumbilla in Queensland, and Moomba in South Australia. AEMO also operates the Natural Gas Services Bulletin Board (GBB), and is system operator of the Victorian Gas Declared Transmission System. AEMO is also responsible for Gas Services Information functions in Western Australia.

Planned power system frequency tests in Tasmania on 14/05/2018Frequency tests in Tasmania have been arranged between AEMO and relevant participants.Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.The effect on Tasmanian frequency control under normal operating conditions will be measured.Scheduled time of the test is between 1100 hrs - 1500 hrs on 14/05/2018Market Participants in mainland regions will not be affected by the tests.

Manager NEM Real Time Operations

6283314 May 2018 1:37MARKET INTERVENTION

Cancellation - Direction (No 26) - South Australia Region

AEMO ELECTRICITY MARKET NOTICE.

Refer to AEMO Electricity Market Notice 62826

Direction cancelled from 0130 hrs 14/05/2018

Manager NEM Real Time Operations

6283213 May 2018 15:01MARKET INTERVENTION

Direction (No 27) - South Australia Region

AEMO ELECTRICITY MARKET NOTICE.

In accordance with section 116 of the National Electricity Law AEMO has issued a direction to a participant in the South Australia region.

The direction was necessary to maintain the power system in a secure operating state.

The direction was issued at 1500 hrs 13/05/2018, with effect from 0030 hrs 14/05/2018.

The direction is expected to stay in place until 1500 hrs 14/05/2018.

For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

Manager NEM Real Time Operations

6283013 May 2018 15:00MARKET INTERVENTION

Cancellation - Direction (No 24) - South Australia Region

AEMO ELECTRICITY MARKET NOTICE.

Refer to AEMO Electricity Market Notice 62820

Direction cancelled from 1500 hrs 13/05/2018

Manager NEM Real Time Operations

6282613 May 2018 14:01MARKET INTERVENTION

Direction (No 26) - South Australia Region

AEMO ELECTRICITY MARKET NOTICE.

In accordance with section 116 of the National Electricity Law AEMO has issued a direction to a participant in the South Australia region.

The direction was necessary to maintain the power system in a secure operating state.

The direction was issued at 1400 hrs 13/05/2018, with effect from 0100 hrs 14/05/2018.

The direction is expected to stay in place until 0530 hrs 14/05/2018.

For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).